185/65R14 in inches

A 185/65R14 tire is 23.5″ tall and 7.3″ wide, and fits a 14″ wheel. In inches it is written 23.5×7.3R14.

Diameter23.47″

Width7.28″

Sidewall4.73″

Drawn to scale. Nominal dimensions calculated from the size code.

Manufacturer data

How tall 185/65R14 tires really are

Heights published by BFGoodrich, General and Toyo for all 6 tires in this size. Their published revolutions per mile work out to 22.7–22.8″ under load (below).

Real 185/65R14 tires measure 23.46–23.50″, against 23.47″ from the size code. They run both taller and shorter than the size code.

Height under load22.7–22.8″

Published revs per mile (885–887) mean the tire rolls like a 22.7–22.8″ tire on the vehicle. Use this for speedometer calibration.

Weight spread14.9–18.4 lb

The lightest (General AltiMAX RT45, SL) is 3.5 lb lighter per corner than the heaviest (BFGoodrich Advantage Control, SL).

6 tires in 185/65R14

Sort by the spec you care about.

	Load					Revs/mi	Source
General AltiMAX RT45Touring	SL · 86T	23.50	14.9	11.0	1,168	885	Spec page
General AltiMAX RT45Touring	SL · 86H	23.50	15.1	11.0	1,168	885	Spec page
Toyo CelsiusAll-weather	SL · 86H	23.46	16.3	10.7	1,168	885	Spec page
Toyo Extensa A/S IIAll-season	SL · 86H	23.46	17.1	11.0	1,168	885	Spec page
Toyo Observe G3-IceWinter	SL · 86T	23.46	18.3	11.3	1,168	885	Spec page
BFGoodrich Advantage ControlAll-season	SL · 86H	23.46	18.4	11.5	1,168	887	Spec page

Is 185/65R14 a 23-inch tire?

≈23″

Close. The size code works out to 23.47″, and the 6 tires here publish 23.46–23.50″, so people call it a 23.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

Size	Diameter ″	vs 185/65R14	Difference
185/60R14	22.74	-0.73″	-3.1%
175/65R14	22.96	-0.51″	-2.2%
205/50R15	23.07	-0.40″	-1.7%
195/60R14	23.21	-0.26″	-1.1%
195/55R15	23.44	-0.02″	-0.1%
175/70R14	23.65	+0.18″	+0.8%
185/60R15	23.74	+0.27″	+1.2%
225/50R15	23.86	+0.39″	+1.7%
215/60R14	24.16	+0.69″	+2.9%
185/70R14	24.20	+0.73″	+3.1%

How to read 185/65R14

How to read any tire size

How 185/65R14 86H is printed on the sidewall. It's the most common code among the 6 tires here (4 of them); tires in this size come in other load and speed ratings too.

1185Section width

185 mm across the widest point, or 7.28 inches. Every 185 size

265Aspect ratio

A percentage, not a measurement: the sidewall is 65% as tall as the tire is wide, which is 120.3 mm or 4.73 inches.

3RConstruction

Radial construction.

414Wheel diameter

Mounts on a 14-inch wheel. Approved wheel widths run 5.0″ to 6.5″.

586Load index

Each tire carries up to 1,168 lb (530 kg) at its maximum pressure.

6HSpeed rating

Rated for up to 130 mph sustained.

Specification	Inches	Metric
Overall diameter	23.47	596 mm
Section width	7.28	185 mm
Sidewall height	4.73	120.3 mm
Circumference	73.7	1,873 mm
Revolutions per mile (calculated, unloaded)	859.4	534 per km
Revolutions per mile (published by manufacturers)	885–887	550–551 per km
Approved wheel width	5.0–6.5	127–165 mm

Speedometer error after switching to 185/65R14

Your actual speed– mph

Questions about 185/65R14

What is 185/65R14 in inches?

23.47 inches tall, 7.28 inches wide, on a 14-inch wheel. Written in inches, that is roughly 23.5×7.3R14.

How much does a 185/65R14 tire weigh?

Between 14.9 lb and 18.4 lb for the 6 tires listed here. The lightest is the General AltiMAX RT45 (SL); the heaviest is the BFGoodrich Advantage Control (SL).

What wheel width do I need for 185/65R14?

Manufacturers approve 5.0–6.5″ wide wheels for this size.

How many revolutions per mile does a 185/65R14 make?

Published figures run 885–887 revolutions per mile. The calculated figure is 859.4, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 185/65R14 than 195/60R14?

0.26 inches taller on paper (23.47″ vs 23.21″), which raises the axle about 0.13″. Your speedometer will read about 1.1% slow.